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Tsunami Workshop Portland Tsunami Workshop Portland

Introductory CommentsIntroductory Comments

Yumei Wang, PE Yumei Wang, PEOregon Department of Geology & Mineral IndustriesOregon Department of Geology & Mineral Industries

(DOGAMI)(DOGAMI)Sept 29, 2009Sept 29, 2009

Origin of EarthquakesOrigin of EarthquakesOMSI public talk Oct 20 at Mission Theatre http://www.omsi.edu/sciencepubmission

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PNW Earthquakes

Pacific NW is Earthquake Country

Geologic evidence of40 Cascadia quakes

Last Cascadia quakeon Jan 26, 1700

Magnitude 9 in future

Tsunami hazards

GenerationGeneration

PropagationPropagation

InundationInundation

Cascadia Fault Rupture Tsunami

Source: ?NOAA

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Wind versus Tsunami Wave Wind versus Tsunami Wave

Source: USGS from Dalr m le

Higher tides

Accelerated erosion

Ecological changes

COASTAL

LAND

SUBSIDENCE~3-4 ftsubsidence

~1-2 ftsubsidence

~6 ft subsidence

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2004 Sumatra Quake/Tsunami2004 Sumatra Quake/TsunamiBanda Aceh, IndonesiaBanda Aceh, Indonesia

BEFOREBEFORE

(http://homepage.mac.com/demark/tsunami/2.html)(http://homepage.mac.com/demark/tsunami/2.html)

2004 Sumatra Quake/Tsunami2004 Sumatra Quake/TsunamiBanda Aceh, IndonesiaBanda Aceh, Indonesia

AFTER AFTER

(http://homepage.mac.com/demark/tsunami/2.html)(http://homepage.mac.com/demark/tsunami/2.html)

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CascadiaFault

TsunamiBuoys

30 min

Modified from OSU Dan Cox

Tsunami Buoy Warning System (too late) Tsunami Buoy Warning System (too late)

Earthquake & Tsunami PreparednessWhen you feel shaking,

Duck, cover & hold &

Move inland & uphill to protect from near-field tsunami

Butsome communities requireengineered tsunami refuges

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S. WA & N OR coast: highest risk S. WA & N OR coast: highest risk

RequiresStrategicRegionalPlan for

Tsunami Vertical

EvacuationOptions

Schematic Design

Tsunami Evacuation Building (TEB)

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TEB WORKSHOP GOALS TEB WORKSHOP GOALS

Bring diverse stakeholders together to discussBring diverse stakeholders together to discusstsunami risk management, incl. TEB optiontsunami risk management, incl. TEB option

FEMA/ATC new guidelinesFEMA/ATC new guidelines

Risk Management Strategies of states & BCRisk Management Strategies of states & BC

Brainstorm sessions on tsunami public safetyBrainstorm sessions on tsunami public safety

Workshop Planning Team Workshop Planning Team Althea Turner, OEM, Lead organizer Althea Turner, OEM, Lead organizer Jay Raskin, City of Cannon Beach Jay Raskin, City of Cannon BeachBob Freitag, CREW Bob Freitag, CREW

Tamra Biasco, FEMA Region X Tamra Biasco, FEMA Region X Tim Walsh, WA DNR Tim Walsh, WA DNR John Schelling, WA EMD John Schelling, WA EMD

Prof. Harry Yeh, OSUProf. Harry Yeh, OSU Yumei Wang, DOGAMI Yumei Wang, DOGAMIOthersOthers ..

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Sponsors & CoSponsors & Co --SponsorsSponsors

Cascadia Region Earthquake Workgroup (CREW)Cascadia Region Earthquake Workgroup (CREW) American Society of Civil Engineers, Council on American Society of Civil Engineers, Council on

Disaster Risk Management (ASCE CDRM)Disaster Risk Management (ASCE CDRM)OR Dept. Land & Conservation DevelopmentOR Dept. Land & Conservation DevelopmentCity of Cannon BeachCity of Cannon BeachOregon Emergency ManagementOregon Emergency ManagementDOGAMIDOGAMIOR Seismic Safety Policy Advisory CommissionOR Seismic Safety Policy Advisory Commission

Workshop Agenda Workshop AgendaPolicy Session of Leaders: Overcoming BarriersPolicy Session of Leaders: Overcoming Barriers

Japanese tsunami evacuation buildings Japanese tsunami evacuation buildingsNew FEMA guidelinesNew FEMA guidelinesReRe--education relating to evacuationeducation relating to evacuationOregon, Washington, California, BritishOregon, Washington, California, British

ColumbiaColumbiaGroup Discussion, brainstorm ways forwardGroup Discussion, brainstorm ways forward

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Policy Session Overview Policy Session Overview

Vertical Evacuation Options for Vertical Evacuation Options forHigh Risk areasHigh Risk areas

-- Harry Yeh, OSU Professor, Seaside evacuationHarry Yeh, OSU Professor, Seaside evacuationmodelmodel

-- Jay Raskin & Yumei Wang (moderators) Jay Raskin & Yumei Wang (moderators)Identifying Partners and NeedsIdentifying Partners and NeedsOvercoming BarriersOvercoming Barriers

Policy Session PanelistsPolicy Session PanelistsUS Senator Ron Wyden Rep, Fritz GrahamUS Senator Ron Wyden Rep, Fritz GrahamUS Congressperson Peter Defazio Rep, Karmen ForeUS Congressperson Peter Defazio Rep, Karmen ForeUS Congressperson David Wu Rep, Steve MarxUS Congressperson David Wu Rep, Steve MarxGovernor Ted Kulongoski Rep, Mark EllsworthGovernor Ted Kulongoski Rep, Mark EllsworthNOAA Tyree WildeNOAA Tyree WildeFEMA Region X FEMA Region X US Senator Jeff Merkley Rep, Maribeth Healey (invited)US Senator Jeff Merkley Rep, Maribeth Healey (invited)